Importance of clocking


There is a lot of talk that external clocks because of the distance to the processor don‘t work. This is the opposite of my experience. While I had used an external Antelope rubidium clock,on my Etherregen and Zodiac Platinum Dac, I have now added a Lhy Audio UIP clocked by the same Antelope Clock to reclock the USB stream emanating from the InnuOS Zenith MkIII. The resultant increase in soundstage depth, attack an decay and overall transparency isn‘t subtle. While there seems to be lots of focus on cables, accurate clocking throughout the chain seems still deemed unnecessary. I don‘t understand InnuOS‘ selling separate reclockers for USB and Ethernet without synchronising Ethernet input, DAC conversion and USB output.

antigrunge2

@lalitk 

Ok, got it. And yes, disconnecting outright doesn’t work; hence the offline feature in Sense

@antigrunge2 ”It shows that the ethernet is a major source of DAC disturbances and some believe that clocking matters in that context.”

I’m not sure what you mean by “DAC disturbances” other than RFI noise affecting the analog(ue) part of the DAC. The streamer will have received ethernet packets/frames and unpacked these into a bitstream which it feeds to the DAC; the DAC itself doesn’t see anything ethernet. Except RFI noise which may have accompanied the digital signal created by the streamer of course.

If some people not only believe ethernet clocking can make a difference but experience that it does, we then need to move onto the mechanisms which might make this possible. Clock accuracy is not one of these, as explained earlier regarding its asynchronous nature. Something else may be at play and many of us would, I’m sure, be interested to understand what these mechanisms might be.

 

@nigeltheflash

 

may I suggest you read John Swenson‘s white paper on the Etherregen.,It is available on thhe uptoneaudio.com website. There is also an addendum on using external 10m clocks

 

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@antigrunge2 You may indeed suggest that but I have read it before. While I congratulate John on an excellent piece of marketing, often referenced by people as if it has a peer-validated and objective status it does not, it contains many misunderstandings and factual inaccuracies.

Might I suggest you read this mythbuster in return?
https://www.reikiaudio.com/reiki-reflections/is-that-the-time-the-fallacy-of-ethernet-clock-accuracy